Brady, D. and Letebele, B. and Duncan, J.R. and Rose, P.D. (1994) Bioaccumulation of metals by Scenedesmus, Selenastrum and Chlorella algae. Water SA, 20 (3). pp. 213-218. ISSN 0378-4738
Official URL: http://www.wrc.org.za/Pages/DisplayItem.aspx?ItemI...
Three species of algae were investigated for their ability to accumulate metal ions. Scenedesmus, Selenastrum and Chloretla species were found to be capable of accumulating metals such as Cu2+, Pb2+, and Cr3+ with 67 to 98% efficiency. Although Chlorella was less capable of accumulating these cations than the other two organisms, it possessed a greater capacity for the Cr2O2' anion. A suspension of Selenastrum was used to accumulate Cr3+ from a sample of post-anaerobic digester tannery effluent. The algae removed 39% of the chromium from solution. The rate of metal (Cu2t, Fb2+, Cr3+) accumulation by Scenedesmus was rapid, occurring in the first 4 min. Of the 4 metals investigated, Cu2+, Cr3t, Pb2t and Cr^O;. the former 2 were more toxic to the algae than the latter two.
|Uncontrolled Keywords:||algae, Scenedesmus, Selenastrum, Chloretla, waste water, remediation, metals, contamination|
|Subjects:||Q Science > QD Chemistry > QD241 Organic chemistry > QD415 Biochemistry|
T Technology > TP Chemical technology > Biotechnology
|Divisions:||Faculty > Faculty of Science > Biochemistry, Microbiology & Biotechnology|
|Deposited By:||Mrs Eileen Shepherd|
|Deposited On:||16 Oct 2012 10:31|
|Last Modified:||16 Oct 2012 10:31|
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